Table 2. Characteristics of the biosphere reserves and period during which the co-construction has been carried out.

Boucle du Baoulé (Mali) W (the Niger component of the transboundary BR) Niokolo-Koba (Senegal) Mare aux Hippopotames (Burkina-Faso)
Period of the co-construction process 4–10 November 2004 (3 days for the diagnostic and 3 days for the co-construction) 14–23 October 2004 (5 days for the diagnostic and 3 days for the co-construction) 27 February–6 March 2005 (4 days for the diagnostic and 4 days for the co-construction ) 1–5 October 2004 (3 days for the diagnostic and 2 days for the co-construction)
Date of creation 1982 1996 1981 1977
Core area size 533.037 ha 220 000 ha - 68 000 ha
Buffer area size 177.345 ha 77 000 ha - 90 000 ha
Transition area size 1.789.618 ha 431 000 ha - 28 000 ha
Total size 2 500 000 ha 728 000 ha 913 000 ha 186 000 ha
Location Located in the West part of Mali, and crosses the region of Koulikoro and Kayes (13°10' to 14°30'N; 08°25' to 09°50'W) Situated in the southwestern region of Niger, the "W" region, and lies in an ancient peneplain with little altitudinal variation (11°55' to 13°20'N; 02°04' to 03°20'E) Situated on the River Gambia, close to the Guinean border in southeastern Senegal (12°30' to 13°20'N; 12°20' to 13°35') Located in Bobo-Dioulasso District in the west of the country, 80 km north of the town of Bobo-Dioulasso (11°30' to 11°45'N; 04°05' to 04°12'W)
Ecosystem and habitats Wooded and bush savanna, Butyrospermum paradoxum savanna, herbaceous steppes and grasslands Gallery forests, woodlands, scrublands, grasslands Herbaceous savanna, seasonally flooded grassland, dry forest Open and gallery forests, wetlands
Status of fauna Critical Abundance of higher mammals (elephant, buffalo, antelopes...) Recent decrease of higher fauna Hippopotamus and birds
Main activities Agriculture and livestock husbandry, forestry, and crafts Agriculture, grazing and goat raising Agriculture, pastoralism, honey gathering and craft activities Agriculture, livestock husbandry, fishing, hunting and plant collecting
Specific driving-forces on biodiversity Scarcity of watering points creates competition between fauna and cattle. Lack of watering points, increased grazing in forest lands, bush fires, and poaching Banana plantations, poaching, and reduction of natural habitat Poaching inside the core area. Illegal fishing, and wood cutting.